The Origami Wave Filter has a small wave angle and fits the 20 ribs that characterize the Origami dripper. The perfect fit of the paper filter to the ribs of the dripper makes the gap between the dripper and the filter narrower. Since hot water does not easily escape from the sides, extraction efficiency is high and flavor can be obtained even in a short extraction time. Since the hot water is drawn out of the coffee powder in a stable manner, the extracted coffee has a less unpleasant aftertaste and a sweeter taste. Compared to the conical type, the wave type allows for a thin layer to accumulate of ground coffee powder, so the hot water passes through the powder layer in a shorter time. The extraction state of the upper and lower layers of the powder is almost the same, so it is possible to extract stable coffee. Use these paper filters with the Origami Dripper S or the Origami Dripper M Size: 1-2 cups (Fits S size dripper), 2-4 cups (Fits M size dripper) Package quantity: 50 sheets per pack Material: Natural Pulp Made in Japan